poll out this morning shows romney has reached his highest personal popularity of the campaign favorability rate something 47% compared to 51% who see him as unfavorable. president obama's rating 55% compared to 44% unfavorable. >> the vice presidential candidates square off -- >> thursday. you can watch it here starting at 6:00. >>> in napa county anybody living here the fairgrounds can expect to hear a big boom in less than half an hour. the napa valley bomb squad plans to blow up a highly volatile case of ether discovered during a cleanup. katie marzullo joins us from calistoga, a safe distance away >> reporter: this is as close as they will let us get. if you look over my shoulder, you can see crews are building a butcher out of sandbags and bomb detecting robot in the mix. authorities have been out here for hours, fire department, bomb squad, police, sheriff. they have to detonate medical ether they found a case, 96 canisters, quarter pound, found in a storm shed with other medical supplies. they believe they were part of a disaster supplies it can for a 200-bed hospital and that had b